Hi All,
As noted above I had tried all the steps outline by others in this thread, and would like to thank the Jetpack staff for responding and attempting to help find a solution.
In the process, I believe I have stumbled upon a solution, so I will pass it along for others out there who may be struggling with this:
After a lot of trial and error and what seemed to be a more intricate procedure than necessary, I have a working map in my Jetpack Contact widget on my sydney theme website stantononline.com.
There is indeed a trick to getting this to work once that error comes up.
Step 1. The API key needs to be removed from the widget and saved as is. (The site will load with an error message about API where the map should be now.)
Step 2. The restrictions need to be removed from the key in the Google API Console and set to “none” and saved.
Step 3. Then add the API key back into the widget and save. (Hopefully, you will see a map now on the front end.)
Step 4. Once the widget is working, then go back and enter restrictions as follows *.example.com/* just as they provide in their example. (I used *.stantononline.com/*)
Step 5. Cross your fingers and hope it stays working!
Note: Anytime I went back and modified the widget in any way, I had to repeat this ENTIRE process all over to keep get the widget working again.(For example, I wanted to plot Stanton City Hall location since the actual street address does not come up in the right place on Google Maps–I corrected this on Google Maps previously.)
I know how helpful all these forums have been to me as an amateur and am just hoping to pay it forward.